Faq; Communication Range Is Too Short; Module Is Easy To Damage; Ber(Bit Error Rate) Is High - Ebyte E70-433T14S2 User Manual

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 The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure
that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good
antenna extension cable to extend the antenna to the outside；

The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly
weakened.

11 FAQ

11.1 Communication range is too short

 The communication distance will be affected when obstacle exists.

Data lose rate will be affected by temperature, humidity and co-channel interference.
 The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.
 Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.
 The signal will be affected when the antenna is near metal object or put in a metal case.

Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the
distance).

The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the
transmitting power.

Due to antenna quality or poor matching between antenna and module.

11.2 Module is easy to damage


Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.
 Please check the stability of power source, the voltage cannot fluctuate too much.

Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic
susceptibility.
 Please ensure the humidity is within limited range, some parts are sensitive to humidity.
 Please avoid using modules under too high or too low temperature.

11.3 BER(Bit Error Rate) is high

 There are co-channel signal interference nearby, please be away from interference sources or modify frequency and
channel to avoid interference;

Poor power supply may cause messy code. Make sure that the power supply is reliable.
 The extension line and feeder quality are poor or too long, so the bit error rate is high;
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E70-433T14S2 user manual
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